I may be old. But use to use the pure Lisp Chatlin included in C with his papers to learn languages a few times. Not as complete as this version of the languag

I may be old. But use to use the pure Lisp Chatlin included in C with his papers to learn languages a few times. Not as complete as this version of the language, but apparently ~300 lines of even REXX was enough although I never tried REXX.